document.writeln("<!DOCTYPE html>");
document.writeln("<html lang=\'en\'>");
document.writeln("    <head>");
document.writeln("        <meta charset=\'UTF-8\'>");
document.writeln("        <title>首页导航</title>");
document.writeln("        <link href=\'../dish/navigation.css\' rel=\'stylesheet\'>");
document.writeln("    </head>");
document.writeln("    <body>");
document.writeln("        <div class=\'navcation\'>");
document.writeln("            ");
document.writeln("            <!--导航logo和search部分-->");
document.writeln("            <div class=\'search\'>");
document.writeln("                <div class=\'nav\'>");
document.writeln("                    <!--导航logo部分-->");
document.writeln("                    <div class=\'logo-left\'>");
document.writeln("                        <a href=\'\'>");
document.writeln("                            <img src=\'../images/logo.png\'>");
document.writeln("                        </a>");
document.writeln("                    </div>");
document.writeln("                    <!--导航搜索部分-->");
document.writeln("                    <div class=\'search-right\'>");
document.writeln("                        <div class=\'form\'>");
document.writeln("                            <input type=\'text\' class=\'search-text\' placeholder=\'搜索商户名、地址、菜名等\'>");
document.writeln("                            <input type=\'button\' class=\'search-btn\' value=\'搜索\'>");
document.writeln("                        </div>");
document.writeln("                    </div>");
document.writeln("                </div>");
document.writeln("            </div>");
document.writeln("        </div>");
document.writeln("    </body>");
document.writeln("</html>");